# Researchers tested what happens to student grades when schools completely ban cell phones in classrooms

Source: [Earth.com](https://www.earth.com/science/researchers-tested-what-happens-to-student-grades-when-schools-completely-ban-cell-phones-in-classrooms/) · 2026-11-09 · Earth & Climate
Page: https://themorning.science/story/researchers-tested-what-happens-to-student-grades-when-schools-completely-ban-ce-db4b6fd698266b88
Kind: research · Impact: medium

## In brief

- Schools around the world remove phones at the classroom door, mostly on the belief that this helps.
- Almost no large randomized experiment had tested whether full classroom phone bans improve grades.
- The new randomized study involved college students in eastern India, with phones stored in wooden boxes.

## Why it matters

It offers rigorous experimental evidence on a widely adopted school policy, which is useful for anyone weighing classroom phone rules.

## Coverage

- [Researchers tested what happens to student grades when schools completely ban cell phones in classrooms](https://www.earth.com/science/researchers-tested-what-happens-to-student-grades-when-schools-completely-ban-cell-phones-in-classrooms/) — Earth.com, 2026-11-09

Tags: education, smartphones, randomized-trial, student-grades, classroom-policy

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science